The automatic trans. does not have the SRM option, it is only for the manual trans. The automatic trans. has its own Downshift Rev Matching without the use of teh SRM button.
On my Z, the SRM button face plate cannot pushed, pulled, turned, punched, fliped, tweaked, pinched, etc. It is just a dead face plate. Since the SRM is only for the manual transmission, and currently there is an unusable face-plate where my SRM button would be, couldn't that spot be used for something? I guess I could try mashing that button face plate again when I'm driving just to make sure it doesn't somehow toggle the Downshift Rev Matching off/on. But I'm pretty sure it does not.
If the unusable SRM wiring is under there, is there space enough to allow room for Iron-Man wiring?